However, in the interest of completeness, a description of these control
cards will be included, (see Takayama and Batterham [4]).


7.5.2 L(o)--This statement causes the value of X (the parametric scalar)
 to be initialized to the value appearing on the data card following
 it. The format of the data card is blank in columns 1-18 with
 the value appearing in columns 19 to 30. Again, a decimal point
 is assumed between columns 24 and 25. The default value is 1.0.
 (See Appendix C).


 7.2.3 LIMIT--This statement set the upper limit for A. The default
 20
 value for LIMIT is 10.


7.3 TYPE N Control Cards


7.3.1 ALTERA--This control card is used to change data in the matrix.
 Each data card specifies a coefficient value in the same format
 as the matrix data. The control card cannot be used to add a new
 entry to the matrix. Therefore, if an entry is likely to be
 altered at some point, an initial value for it must be specified
 in the matrix section (even is zero). Despite this restriction,
 the ALTERA control is quite useful for many problems in market-
 oriented LCP models. ALTERA will be ignored if it appears before
 a MATRIX has been read in. ALTERA cannot be used to alter
 coefficients to create a revised problem after the initial problem
 has been solved. This limitation can be circumvented by creating
 a copy of the model on disk or tape and re-entering the problem
 for each ALTERA. See section 8 and the "EOF" and "TAPE" controls
 for accomplishing this.


7.3.2 ALTERB--This statement changes or adds a new entry in the right
 hand side (b-vector in our previous analysis). Each change, one
 per card, is input according to the same format as the RHS data.